Deleted cache,restarted/reinstalled the browser.
Its all fine on Desktop Firefox but its not working on my phone.

I think its only twitter embeds too,havent had a problem with discord stuff.

Android 11
Firefox 91.3.1

Bump

possibly tracker blocking, and twitter embeds are basically trackers

Yep,didnt know that,so I turned off Enhanced Tracking Protection for this site and embeds work!
Ty guys!